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Sandwich sudoku(Hard) https://gridpuzzle.com/sandwich-sudoku/3e8n4

Latest score list for #3e8n4

Lo
Loans 刚刚
12'44''
pr
programs 3分钟前
18'36''
Is
Isabella 30分钟前
12'55''
an
anonymous 58分钟前
11'56''
Ol
Oliver 一小时前
5'1''
gu
guest 23分钟前
7'1''
an
anonymous 一小时前
11'6''
in
injury 一小时前
4'7''
gu
guest 一小时前
15'25''
an
anonymous 2小时前
10'12''

Latest score list for Sandwich sudoku

At
Attorney solved puzzle No#l0yew;
12'41''
li
lightroom solved puzzle No#3e5kk;
15'18''
gu
guest solved puzzle No#3jdw5;
4'7''
gu
guest solved puzzle No#l0102;
13'6''
my
myloancare solved puzzle No#lrrmj;
18'54''
gu
guest solved puzzle No#odwd2;
14'56''
an
anonymous solved puzzle No#3e5kk;
17'58''
gu
guest solved puzzle No#lg6vo;
10'0''
Ha
Hail car solved puzzle No#okwm4;
14'43''
be
beauty solved puzzle No#lmx2o;
15'58''

How to play Sandwich sudoku

Sandwich Sudoku Rules

  • Fill the numbers 1-9 into each row, column, and 3x3 subgrid of a 9x9 grid.

  • Each number can only appear once in each row, column, and 3x3 subgrid.

  • Fill in the blank cells with the numbers 1-9 so that each row, column, and 3x3 subgrid contains the numbers 1-9.

  • contains extra numbers outside the grid. These extra clues indicate the sum of digits between 1 and 9 in the corresponding row or column.

Sandwich Sudoku is a type of Sudoku puzzle that uses a non-standard grid. The grid is divided into several smaller grids, and the numbers in each smaller grid must be different. In addition, there are also numbers outside of the smaller grids that provide clues to the solution.


The outer borders of the grid contain the sum of the middle numbers in the corresponding row or column. For example, in the row with the numbers 2, 4, and 6, the outer border would contain the number 12. These numbers can be used to help solve the puzzle by providing clues to the possible values of the missing numbers.


Sandwich Sudoku puzzles can be more challenging than standard Sudoku puzzles because they require players to think more creatively and use more problem-solving skills. For example, players may need to use the clues outside of the smaller grids to help them solve the puzzle, and they may also need to use logic and deduction to narrow down the possible solutions.

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